how to correctly deal with the LED light belt heat dissipation
In our daily life, many places will use LED light strip. Like other luminaries, heat is generated if the strip is guided for a long time. So, how to deal with the lamp belt heating problem, let's have a look.
Correct treatment of LED strip heat dissipation 1. Connection type
Commonly used lamp bar specifications are 12V and 24V. 12V is 3 series and parallel structure, 24 V is 6 series and multiple parallel structure. Each type of strip is specific due to the connection and use of LED strips. In the design, the length of connection time is related to the width of the circuit and the thickness of the copper foil. The strength of the current is also related to the cross-sectional area of the conductor. If the connection length exceeds the current that the wire can withstand during the wiring process, the strip will be heated. If the heating time is too long, it will affect the life of the circuit board and lamp belt.
Correct treatment of LED strip heat dissipation 2. the circuit temperature is too high
LED strip is a series and parallel structure. When one set of circuits short-circuits, the voltage of the other beads in the same set will increase, and the brightness of the beads will increase, which will generate heat correspondingly, especially the 5050 band. When any one of them short circuit in the chip circuit, the current of the other lamp bead will be doubled, and the brightness of the lamp bead will become super bright and super high, and the heat output will become too high and will increase rapidly, serious will cause the circuit board to burn down.
Correct treatment of LED strip heat dissipation 3, check appearance
However, these problems are usually not noticed because the short circuit does not affect the normal lighting of the lamp bar. Usually, testers only notice if the bead can be turned on. They rarely check for brightness anomalies or perform electrical tests instead of visual checks, which often ignore the problem. That's why some lights get hot once they're turned on.
Correct treatment of LED strip heat dissipation 4, the total thickness of circuit board
First, the wiring in the circuit should be as wide as possible and the distance between the wires should be 0.5mm. The remaining space should be full. The thickness of the copper foil shall be as thick as possible without violating the customer's requirements for the total thickness of the circuit board.
5. Pay attention to installation details
Then, when printing solder paste during production, try not to form continuous tin between solder pads to avoid short circuit of solder due to poor printing quality. Attention should also be paid to installation details to avoid short circuit. Check patch position prior to reflow and check appearance after reflow to make sure the light strip is not short-circuiting, then perform electrical test. When checking again, please pay attention to whether the brightness of the lamp bead is abnormal.
The above is the sharing about how to correctly deal with the heat dissipation of the LED lamp strip. I believe that after reading the above summary, we have a certain understanding of this knowledge. If the final conditions allow, when using the lamp strip, we can let the lamp have more time intervals, so as to avoid overheating caused by the lamp strip working for a long time. Of course, the use of LED lamp belt is inevitable heating, as long as we pay attention not to produce short circuit and overwork, we can avoid some accidents caused by overheating. Do not cover the outside of the lamp belt as much as possible, resulting in no heat dissipation. If you want to know more about LED lamp strip heat dissipation information, you can go to customer service for consultation.
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